Question: What was the 2018 population of the country that hosted the 1920 Summer Olympics in which the country where Ulrich Inderbinen died competed.
Context: Document 1: Belgium: Kingdom of Belgium Koninkrijk België (Dutch) Royaume de Belgique (French) Königreich Belgien (German) Flag Coat of arms Motto: ``Eendracht maakt macht ''(Dutch)`` L'union fait la force'' (French) ``Einigkeit macht stark ''(German)`` Unity makes Strength'' Anthem: ``La Brabançonne ''`` The Brabantian'' Location of Belgium (dark green) -- in Europe (green & dark grey) -- in the European Union (green) Capital and largest city Brussels 50 ° 51 ′ N 4 ° 21 ′ E ﻿ / ﻿ 50.850 ° N 4.350 ° E ﻿ / 50.850; 4.350 Official languages Dutch French German Ethnic groups see Demographics Religion (2015) 60.7% Christianity 32.0% No religion 5.2% Islam 2.1% Other religions Demonym Belgian Government Federal parliamentary constitutional monarchy Monarch Philippe Prime Minister Charles Michel Legislature Federal Parliament Upper house Senate Lower house Chamber of Representatives Independence (from the Netherlands) Declared 4 October 1830 Recognised 19 April 1839 Area Total 30,528 km (11,787 sq mi) (136th) Water (%) 6.4 Population 1 August 2018 census 11,420,163 (79th) Density 374.2 / km (969.2 / sq mi) (36th) GDP (PPP) 2018 estimate Total $550.664 billion (38th) Per capita $48,258 (20th) GDP (nominal) 2016 estimate Total $562.229 billion (23rd) Per capita $49,272 (17th) Gini (2011) 26.3 low HDI (2017) 0.916 very high 17th Currency Euro (€) (EUR) Time zone UTC + 1 (CET) Summer (DST) UTC + 2 (CEST) Driving side right Calling code + 32 ISO 3166 code BE Internet TLD. be The flag's official proportions of 13: 15 are rarely seen; proportions of 2: 3 or similar are more common. The Brussels region is the de facto capital, but the City of Brussels municipality is the de jure capital. The. eu domain is also used, as it is shared with other European Union member states.
Document 2: Ulrich Inderbinen: Ulrich Inderbinen (December 3, 1900, Zermatt, Valais – June 14, 2004) was a Swiss mountain guide famous for his longevity and love for mountain climbing. He had been on the top of Matterhorn over 370 times and made his last ascent of it when he was 90. Though he was not the first to summit the Matterhorn, he may have done it the best. His fame laid not in conquering mountains but safely guiding visitors to the top.
Document 3: Alps: Some high mountain villages, such as Avoriaz (in France), Wengen, and Zermatt (in Switzerland) are accessible only by cable car or cog-rail trains, and are car free. Other villages in the Alps are considering becoming car free zones or limiting the number of cars for reasons of sustainability of the fragile Alpine terrain.
Document 4: Switzerland at the 1920 Summer Olympics: Switzerland competed at the 1920 Summer Olympics in Antwerp, Belgium. 77 competitors, all men, took part in 45 events in 13 sports.
Answer: 11,420,163
Reasoning steps: Ulrich Inderbinen >> place of death Answer: Zermatt
Where are the villages of Wengen and Zermatt located? Answer: Switzerland
Switzerland at the 1920 Summer Olympics >> country Answer: Belgium
what is the population of Belgium in 2018 Answer: 11,420,163